Aroca City currently funds its public schools through taxes on property. In place of this system, the city plans to introduce a sales tax of three percent on all retail sales in the city. Critics protest that three percent of current retail sales falls short of the amount raised for schools by property taxes. The critics are correct on this point. Nevertheless, implementing the plan will probably not reduce the money going to Aroca's schools. Several large retailers have selected Aroca City as the site for huge new stores, and these are certain to draw large numbers of shoppers from neighboring municipalities, where sales are taxed at rates of six percent and more. In consequence, retail sales in Aroca City are bound to increase substantially.
In the argument given, the two potions in boldface play which of the following roles?
作者提出来,用消费税代替财产税给学校。反对者说,会减少学校收入,但是作者的意思是,不会减少。
第二个bf明显是支持作者观点的。第一个bf说的就是一个plan,这个plan显然是作者支持的。
看选项 ab差不多,cd差不多,e明显各种不对。
cd说这个plan是作者criticizes 明显与作者观点不一致。
ab的区别在于后半句,第二个bf明显是支持了作者支持的观点,选作者defense。
bf题的关键就是找好bf之间,和bf跟作者观点的关系。